Copper-doped ZnSnO3 visible light photocatalyst and preparation method thereof
A photocatalyst and visible light technology, which is applied in the field of copper-doped ZnSnO3 photocatalyst and its preparation, can solve the problems of difficult to change the energy band structure of the system, and achieves improved quantum conversion efficiency, good stability and recovery, and reduced recombination. effect of chance
Examples
Embodiment 1
[0016] After grinding copper oxide, zinc oxide and tin oxide powder, according to the stoichiometric ratio of Cu 0.01 Zn 0.99 SnO 3 Ingredients: Pour the prepared powder into the reactor, add nitric acid with a mass percentage concentration of 0.2% to the beaker, and the ratio of tin oxide to the added nitric acid is 0.2; stir to fully dissolve the powder, add mass Ammonia water with a percentage concentration of 0.2%, adjust the pH value to 9, so that the metal oxide ions are completely precipitated; wash, filter and dry the precipitate, put it in a muffle furnace for calcination at 500 degrees Celsius for 2 hours, take it out and cool it in the air; The obtained product was added to simulated organic pollutants, which were prepared from acid red with a concentration of 20 mg / L, and the added amount of the prepared photocatalyst was 1 g / L. The reactor is made of borosilicate glass; the light source is a 300-watt xenon lamp, which is filtered to allow light with a wavelengt...
Embodiment 2
[0018] After grinding copper oxide, zinc oxide and tin oxide powder, according to the stoichiometric ratio of Cu 0.07 Zn 0.93 SnO 3 Ingredients: Pour the prepared powder into the reactor, add nitric acid with a mass percentage concentration of 1% to the beaker, the ratio of tin oxide to the added nitric acid is 1; stir to fully dissolve the powder, add mass The percentage concentration is 2% ammonia water, adjust the pH value to 11, so that the metal oxide ions are completely precipitated; wash, filter and dry the precipitate, put it in a muffle furnace for calcination at 700 degrees Celsius for 1 hour, take it out and cool it in the air. The obtained product was added to simulated organic pollutants, which were prepared from acid red with a concentration of 20 mg / L, and the added amount of the prepared photocatalyst was 1 g / L. The reactor is made of borosilicate glass; the light source is a 300-watt xenon lamp, which is filtered to allow light with a wavelength above 420 n...
Embodiment 3
[0020] After grinding copper oxide, zinc oxide and tin oxide powder, according to the stoichiometric ratio of Cu 0.1 Zn 0.9 SnO 3 Ingredients: Pour the prepared powder into the reactor, add nitric acid with a mass percentage concentration of 0.6% to the beaker, and the ratio of tin oxide to the added nitric acid is 0.6; stir to fully dissolve the powder, add mass The percentage concentration is 1.6% ammonia water, adjust the pH value to 10, so that the metal oxide ions are completely precipitated; wash, filter and dry the precipitate, put it in a muffle furnace for calcination at 600 degrees Celsius for 2.5 hours, take it out and cool it in the air. The obtained product was added to simulated organic pollutants, which were prepared from acid red with a concentration of 20 mg / L, and the added amount of the prepared photocatalyst was 1 g / L. The reactor is made of borosilicate glass; the light source is a 300-watt xenon lamp, which is filtered to allow light with a wavelength ...
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Description
Claims
Application Information
- IPC
- B01J23/835
- Inventors
- 姚毅; 曾鸿鹄